Complex classes like Requests_Cookie often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Requests_Cookie, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 15 | class Requests_Cookie { |
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| 16 | /** |
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| 17 | * Cookie name. |
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| 18 | * |
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| 19 | * @var string |
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| 20 | */ |
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| 21 | public $name; |
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| 22 | |||
| 23 | /** |
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| 24 | * Cookie value. |
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| 25 | * |
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| 26 | * @var string |
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| 27 | */ |
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| 28 | public $value; |
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| 29 | |||
| 30 | /** |
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| 31 | * Cookie attributes |
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| 32 | * |
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| 33 | * Valid keys are (currently) path, domain, expires, max-age, secure and |
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| 34 | * httponly. |
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| 35 | * |
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| 36 | * @var Requests_Utility_CaseInsensitiveDictionary|array Array-like object |
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| 37 | */ |
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| 38 | public $attributes = array(); |
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| 39 | |||
| 40 | /** |
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| 41 | * Cookie flags |
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| 42 | * |
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| 43 | * Valid keys are (currently) creation, last-access, persistent and |
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| 44 | * host-only. |
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| 45 | * |
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| 46 | * @var array |
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| 47 | */ |
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| 48 | public $flags = array(); |
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| 49 | |||
| 50 | /** |
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| 51 | * Reference time for relative calculations |
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| 52 | * |
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| 53 | * This is used in place of `time()` when calculating Max-Age expiration and |
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| 54 | * checking time validity. |
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| 55 | * |
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| 56 | * @var int |
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| 57 | */ |
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| 58 | public $reference_time = 0; |
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| 59 | |||
| 60 | /** |
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| 61 | * Create a new cookie object |
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| 62 | * |
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| 63 | * @param string $name |
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| 64 | * @param string $value |
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| 65 | * @param array|Requests_Utility_CaseInsensitiveDictionary $attributes Associative array of attribute data |
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| 66 | */ |
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| 67 | public function __construct($name, $value, $attributes = array(), $flags = array(), $reference_time = null) { |
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| 86 | |||
| 87 | /** |
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| 88 | * Check if a cookie is expired. |
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| 89 | * |
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| 90 | * Checks the age against $this->reference_time to determine if the cookie |
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| 91 | * is expired. |
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| 92 | * |
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| 93 | * @return boolean True if expired, false if time is valid. |
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| 94 | */ |
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| 95 | public function is_expired() { |
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| 112 | |||
| 113 | /** |
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| 114 | * Check if a cookie is valid for a given URI |
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| 115 | * |
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| 116 | * @param Requests_IRI $uri URI to check |
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| 117 | * @return boolean Whether the cookie is valid for the given URI |
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| 118 | */ |
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| 119 | public function uri_matches(Requests_IRI $uri) { |
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| 130 | |||
| 131 | /** |
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| 132 | * Check if a cookie is valid for a given domain |
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| 133 | * |
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| 134 | * @param string $string Domain to check |
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| 135 | * @return boolean Whether the cookie is valid for the given domain |
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| 136 | */ |
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| 137 | public function domain_matches($string) { |
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| 177 | |||
| 178 | /** |
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| 179 | * Check if a cookie is valid for a given path |
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| 180 | * |
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| 181 | * From the path-match check in RFC 6265 section 5.1.4 |
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| 182 | * |
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| 183 | * @param string $request_path Path to check |
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| 184 | * @return boolean Whether the cookie is valid for the given path |
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| 185 | */ |
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| 186 | public function path_matches($request_path) { |
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| 222 | |||
| 223 | /** |
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| 224 | * Normalize cookie and attributes |
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| 225 | * |
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| 226 | * @return boolean Whether the cookie was successfully normalized |
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| 227 | */ |
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| 228 | public function normalize() { |
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| 244 | |||
| 245 | /** |
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| 246 | * Parse an individual cookie attribute |
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| 247 | * |
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| 248 | * Handles parsing individual attributes from the cookie values. |
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| 249 | * |
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| 250 | * @param string $name Attribute name |
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| 251 | * @param string|boolean $value Attribute value (string value, or true if empty/flag) |
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| 252 | * @return mixed Value if available, or null if the attribute value is invalid (and should be skipped) |
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| 253 | */ |
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| 254 | protected function normalize_attribute($name, $value) { |
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| 302 | |||
| 303 | /** |
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| 304 | * Format a cookie for a Cookie header |
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| 305 | * |
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| 306 | * This is used when sending cookies to a server. |
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| 307 | * |
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| 308 | * @return string Cookie formatted for Cookie header |
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| 309 | */ |
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| 310 | public function format_for_header() { |
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| 313 | |||
| 314 | /** |
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| 315 | * Format a cookie for a Cookie header |
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| 316 | * |
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| 317 | * @codeCoverageIgnore |
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| 318 | * @deprecated Use {@see Requests_Cookie::format_for_header} |
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| 319 | * @return string |
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| 320 | */ |
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| 321 | public function formatForHeader() { |
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| 324 | |||
| 325 | /** |
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| 326 | * Format a cookie for a Set-Cookie header |
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| 327 | * |
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| 328 | * This is used when sending cookies to clients. This isn't really |
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| 329 | * applicable to client-side usage, but might be handy for debugging. |
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| 330 | * |
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| 331 | * @return string Cookie formatted for Set-Cookie header |
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| 332 | */ |
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| 333 | public function format_for_set_cookie() { |
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| 351 | |||
| 352 | /** |
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| 353 | * Format a cookie for a Set-Cookie header |
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| 354 | * |
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| 355 | * @codeCoverageIgnore |
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| 356 | * @deprecated Use {@see Requests_Cookie::format_for_set_cookie} |
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| 357 | * @return string |
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| 358 | */ |
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| 359 | public function formatForSetCookie() { |
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| 362 | |||
| 363 | /** |
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| 364 | * Get the cookie value |
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| 365 | * |
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| 366 | * Attributes and other data can be accessed via methods. |
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| 367 | */ |
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| 368 | public function __toString() { |
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| 371 | |||
| 372 | /** |
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| 373 | * Parse a cookie string into a cookie object |
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| 374 | * |
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| 375 | * Based on Mozilla's parsing code in Firefox and related projects, which |
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| 376 | * is an intentional deviation from RFC 2109 and RFC 2616. RFC 6265 |
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| 377 | * specifies some of this handling, but not in a thorough manner. |
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| 378 | * |
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| 379 | * @param string Cookie header value (from a Set-Cookie header) |
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| 380 | * @return Requests_Cookie Parsed cookie object |
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| 381 | */ |
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| 382 | public static function parse($string, $name = '', $reference_time = null) { |
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| 425 | |||
| 426 | /** |
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| 427 | * Parse all Set-Cookie headers from request headers |
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| 428 | * |
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| 429 | * @param Requests_Response_Headers $headers Headers to parse from |
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| 430 | * @param Requests_IRI|null $origin URI for comparing cookie origins |
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| 431 | * @param int|null $time Reference time for expiration calculation |
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| 432 | * @return array |
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| 433 | */ |
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| 434 | public static function parse_from_headers(Requests_Response_Headers $headers, Requests_IRI $origin = null, $time = null) { |
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| 489 | |||
| 490 | /** |
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| 491 | * Parse all Set-Cookie headers from request headers |
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| 492 | * |
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| 493 | * @codeCoverageIgnore |
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| 494 | * @deprecated Use {@see Requests_Cookie::parse_from_headers} |
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| 495 | * @return string |
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| 496 | */ |
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| 497 | public static function parseFromHeaders(Requests_Response_Headers $headers) { |
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| 500 | } |
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| 501 |
This check marks property names that have not been written in camelCase.
In camelCase names are written without any punctuation, the start of each new word being marked by a capital letter. Thus the name database connection string becomes
databaseConnectionString.